From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5CE1514B097; Thu, 9 May 2024 15:06:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715267208; cv=none; b=O5XOdSVxE06twBAkvDI3YFwshDWTPJ6U9mLbyeGcoij/0IPHtu3IdFCO1bfYf7J4HDeTF4n8Is7G3FbuOhcWSQWB45FKn5a0VNFNoBxYQoEDEJl5l+Uj4Pi3AU7mw+CLPe2hd6NTkLXksFqwwTpM2j8fAHJfVrwcJO7eZHyMHBI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715267208; c=relaxed/simple; bh=x6JHJAdbVrRwR/f2aIKQZAixI0xnklootlO8nZFSZ58=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ImXjWXWhxmW5uVPOpvwTOXrvw13l+irJUtc7462aR+uAuIAdNVyXR4hQJMU0+csWROLcWQ7XIGvOVhZGBJlJVcGJfiFbDLw0gpWOkdL1aSwjItpQkYeB5uGAWdFSUOdpe6kAbJ+52hDT1L1iGgr7GJn9g9SXVsF6MxqWUE5NVq8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=dRnqPC+A; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="dRnqPC+A" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=5bGAAussnDq0PNHB0NWRX56OjrRoHTwmKLfsWPNPwM0=; b=dRnqPC+AtmI8x0tQnujQqNDaiA KO3XojqLNuWeEtlUmYx3PNP6m1CfmBdlJlqBLLIzqjPbPwkY3ISVoAUKXt3we+gtbTU1fKugH55q7 OJKgVDgHSYikLOlienPwFCPjk9XYCB5lc6lIXmD1JDil55sHYb0t3Ck5pHFMF43NRRsT5Tw1/Qqe0 b6GnIRpftuhCpP/32MvAHUG5AwU2K92/ekYWNCz/4ndMqcp5Jif7PvU6mhQDzs62+nhK1L0rRfXkG uenNqpl9EmM2h/Zo+uXsEwUK9f4P9iXU9vN53Il/0BsXryrUAP0drB+N9QXFI79I7VluUhKGeaOOM PubhICsg==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1s55M6-00000001oxT-1nxB; Thu, 09 May 2024 15:06:46 +0000 Date: Thu, 9 May 2024 08:06:46 -0700 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Christoph Hellwig , Eric Biggers , aalbersh@redhat.com, linux-xfs@vger.kernel.org, alexl@redhat.com, walters@verbum.org, fsverity@lists.linux.dev, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 25/26] xfs: make it possible to disable fsverity Message-ID: References: <171444680291.957659.15782417454902691461.stgit@frogsfrogsfrogs> <171444680792.957659.14055056649560052839.stgit@frogsfrogsfrogs> <20240501225007.GM360919@frogsfrogsfrogs> <20240502001501.GB1853833@google.com> <20240508203148.GE360919@frogsfrogsfrogs> <20240509144542.GJ360919@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240509144542.GJ360919@frogsfrogsfrogs> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Thu, May 09, 2024 at 07:45:42AM -0700, Darrick J. Wong wrote: > How do you salvage the content of a fsverity file if the merkle tree > hashes don't match the data? I'm thinking about the backup disk usecase > where you enable fsverity to detect bitrot in your video files but > they'd otherwise be mostly playable if it weren't for the EIO. Why would you enable fsverity for DVD images on your backup files?